只有姥姥在家的英文怎么说

"Only grandma is at home" 可以用英文表示为 "It's just grandma at home" 或者 "There's only grandma at home."

"Only" 是英文中的一个副词，意思是"只有"。"Just" 是英文中的一个副词，意思是"仅仅"。"There's" 是 "there is" 的缩写形式，意思是"有"。

下面是一些英文例句及其中文翻译：

It's just grandma at home. 只有姥姥在家。
There's only grandma at home. 只有姥姥在家。
It's just me and grandma at home. 只有我和姥姥在家。
There's only me and grandma at home. 只有我和姥姥在家。